Finding the Fourth Proportional to 16,915.91, 25,376.64 and 5,819.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,915.91 : 25,376.64 = 5,819.91 : x
2. Step 2: Convert to fraction form
   16,915.91/25,376.64 = 5,819.91/x
3. Step 3: Cross multiply
   16,915.91x = 25,376.64 × 5,819.91
4. Step 4: Simplify right side
   16,915.91x = 147,689,760.90
5. Step 5: Solve for x
   x = 147,689,760.90/16,915.91
6. Step 6: Final answer
   x = 8,730.82